Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

St Louis → Houston via Chicago: arrives on time 86%

  1. 07:20 STL → 09:00 ORD
    UA 4423 · United, flown by GoJet · 1h 40m · 86% on time, 0.6% cancelled
  2. 3h 40m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 12:40 ORD → 15:40 IAH
    UA 1448 · United · 3h 00m · 89% on time, 0.8% cancelled

Total trip 8h 20m, scheduled departure to arrival. Times are local. Both flew on 32 of the last 56 days.

Makes the connection99%The first flight arrived more than 175 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 40m layover.
Arrives on time86%First flight not cancelled (0.6% are) × connection made (99%) × second flight not cancelled (0.8% are) and within 15 minutes (89%).
Total trip8h 20mSTL 07:20 to IAH 15:40, layover included

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.